Set HTTP access proxy server in C # code

When I started writing a blog reading tool, I always accessed it directly, and the access method was relatively simple:

Webrequest _ HWR = webrequest. createdefault (new system. Uri (URL ));


Webresponse _ hrs = _ HWR. getresponse ();


Stream receivestream = _ hrs. getresponsestream ();

But recently I opened the project and saw that the code was not running normally. After debugging, the client proxy was blocked by its, so I had to find the method for setting proxy access. The original code was very simple, you only need to add the following code.

WebProxy _ Wp = new WebProxy (proxyname, proxyport );

_ WP. bypassproxyonlocal = true;

Icredentials credentials = new networkcredential (username, userkey, domainname );

_ WP. Credentials = credentials;


Webrequest _ HWR = webrequest. createdefault (new system. Uri (URL ));

_ HWR. Proxy = _ WP;

Webresponse _ hrs = _ HWR. getresponse ();

Of course, on msdn, there is another way to use _ HWR. Proxy = _ WP;

Globalproxyselection. Select = _ WP; in fact, this is to set the global proxy service. You do not need to set them one by one. It is easier to capture page data.

Encoding encode = system. Text. encoding. default;

Streamreader sr = new streamreader (receivestream, encode );



String htmlcontent = "";



Char [] READ = new char [256];

Int COUNT = Sr. Read (read, 0,256 );

While (count> 0)

{

String STR = new string (read, 0, count );

Htmlcontent + = STR;

Count = Sr. Read (read, 0,256 );

}

OK. In this way, the code is configured as our proxy and the program is used to access the IE content ~~